Holy 60FPS Grall ,harware-gpu or cpu ?

[darch]

It is really holy 60fps grall for me ,couse its really only true smooth way to play,no delay,alll now that.Please help me.
Last year i was able to 60.
This year i stuck on 52-53 fps (benchmark).
This is even with lowest possible graphic settings ,turning off vsync in game ,on in catalyst ( d3d overider -triplebuffering vsync on ,same results,)Same witch lowering mipmap details i ccc center and optimalisation textures to fast mode.maybe 2fps more~53,54.
Turnning up settings couse no loss of fps until
aa off
player high
textures high
crowd medium-
sideline characters off highest change to 52 53 fps ,cpu or gpu haeavy?
lighting on
deph on

anythig higher result lowering fps to ~46,i would be happy witch those but 60 fps.
My native resolution is 1360x768 so i dont wanna change that (my tv as monitor didnt support 720p mode and others lower than native 16-9 via d-sub)
My specs are
celleron g530 2,4 ghz dual core sandy bridge
h61 mainboard
radeon 5670 500meg asus
4gb ram
XpSp3 ,win7 on D almost same results ,little better with Xp when i put real time priority on cpu beside high (only possible on W7).
I,ve read somwhere that nba 2k 13 uses mostly cpu ,my conlusion based on my expiriance is simmilar, but not for sure
I want to change some harware but with one?
1.Cpu to pentum g860 2core 3,0 ghz sandy bridge, my best option 84$ I will sell my cpu~ 32$
2.Cpu to Intel Core i3-2130 146$
3.Gpu to radeon 7770 140 $ i will sell my gpu ~46$
Truly i can afford only one couse i live in Poland so its 23% tax on hardware oppose to US prices and 1/4 earnings ratio oppose to US.
So what is really sweet spot for nba 2k13 cpu dual core over 3,0-3,1 3,2ghz ,more or 4 cores
or gpu over 7770 1gb?
There is also those config.cfg edit but i dont know what i should change due my hardware to archieve 60 fps ,tried blindly .
Thank you fo reading ,patienc and answers.

PS:Ive posted this on OperationSports forums but didnt came with result yet

[Bnicolas13]

2K is very CPU-intensive. If you're only looking to play 2K then you'll want to look to upgrade your CPU more than anything. Back when I had a lower-end CPU altering the crowd detail often provided a quick boost in quality. The video card helps but it barely makes a difference in 2K games, go figure.

[JaoSming]

He speaks the truth, I upgraded from an 8800GT to a 560 Ti and got little improvement (~45fps for both cards). New computer with a top of the line CPU gets me 120fps with a 560 Ti.

[darch]

So what option i should go ?
1.Cpu to pentum g860 2core 3,0 ghz sandy bridge, my best option 84$ I will sell my cpu~ 32$
2.Cpu to Intel Core i3-2130 2core 4 threadths 146$

or if this will be not enough to get 60 fps what cheapest cpu i should buy ?

[wuttang]

I can run the game fine with my oldold i5 (OC'ed just a bit) + Nvidia 250 + 1650x1050 with mostly maxed out settings.
I even fast foward often using CE.
It's the damn cutscenes/ingame pop-ups that kill my fps.

[Bnicolas13]

He speaks the truth, I upgraded from an 8800GT to a 560 Ti and got little improvement (~45fps for both cards). New computer with a top of the line CPU gets me 120fps with a 560 Ti.

Yup, I had about 110 when I had a 550 Ti, and now have 120-125 with a 570. Kind of annoying honestly lol

So what option i should go ?
1.Cpu to pentum g860 2core 3,0 ghz sandy bridge, my best option 84$ I will sell my cpu~ 32$
2.Cpu to Intel Core i3-2130 2core 4 threadths 146$

or if this will be not enough to get 60 fps what cheapest cpu i should buy ?

Honestly, I'd shop around for the cheapest quad core you can find. The extra cores does a world of difference. Just don't rush it, shop the sale ads, something always pops up.